6506-13 - Introduction to Superpave Strategic Highway...

1Introduction to Superpave•Strategic Highway Research Program (SHRP) was established by U.S. Congress in 1987 to conduct a 5-year study to improve the performance of roads in the U.S.•Of the U.S.$150 million budget, $50 million was spent on asphalt research.•SUPERPAVE (SUperior PERforming Asphalt PAVEments) is a product of the SHRP asphalt research.•SUPERPAVE consists of:(1)Asphalt Binder Specification.(2) Mixture Design and Analysis System.•Originally, there were 3 levels of Superpave mix design._______________________________________________Design Level Traffic, ESALsTesting Requirements 1 ESALs106Materials selection &volumetric proportioning2 106ESALs107Level 1 + performanceprediction tests3 ESALs107Level 1 + enhanced performance prediction tests•However, only Level 1 mix design can be implemented at this point.

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